The owners of the 37-story skyscraper in the City of London financial district known as the Walkie Talkie are seeking permission to mount sun-shading gear to block a car-melting light beam cast by the tower.

Land Securities Group Plc (LAND) and Canary Wharf Group Plc (SBD) submitted a planning application to the City of London to install shades called “brise soleil” between stories three and 34 on the 20 Fenchurch Street tower, the companies said in an e-mailed statement today.

The fix will cost in the “single digit millions” of pounds and take about six months to install, according to the companies.